Image Diff
Professional image comparison with pixel-level diff, configurable sensitivity, and zoom inspection.
No watermarkFree & unlimited
Image A (reference)
Image B (comparison)
All processing happens in your browser. No data is sent to any server.
About this tool
- 1
Upload the first image
Select the original or "before" version of the image.
- 2
Upload the second image
Select the modified or "after" version for comparison.
- 3
View the differences
Differences are highlighted in a contrasting color overlay so changes are easy to spot.
- 4
Switch comparison modes
Toggle between overlay, side-by-side, slider, and difference-only views.
- Images should be the same dimensions for pixel-accurate comparison - resize them first if needed.
- The difference-only mode isolates just the changed pixels, making subtle edits obvious.
- Use the slider mode for before/after presentations to stakeholders or clients.
- Pixel-level difference detection
- Multiple comparison modes (overlay, slider, side-by-side)
- Adjustable highlight sensitivity
- Difference percentage calculation
- Zoom and pan synchronized views
- Verify visual regression in UI screenshots during software development.
- Compare design revisions to spot unintended changes between versions.
- Check retouched photos against originals to review edits.
- Detect subtle differences in product photos or document scans.
The tool will compare pixels that overlap based on the top-left corner. For accurate results, resize both images to the same dimensions before comparing.
Yes. Increase the threshold value so that tiny color variations (from compression or slight lighting changes) are ignored, highlighting only meaningful differences.